The JsonSerializable::jsonSerialize() function is an inbuilt function in PHP which is used to serialize the JSON object to a value that can be serialized natively by using json_encode() function.
Syntax:
mixed JsonSerializable::jsonSerialize( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns the data which is serialized by json_encode() function.
Below programs illustrate the JsonSerializable::jsonSerialize() function in PHP:
Program 1:
<?php class vector implements JsonSerializable { public function __construct(array $arr) { $this->array = $arr; } public function jsonSerialize() { return $this->array; } } // Declare an array $arr = [1, 2, 3, 4, 5]; echo("JSON elements:\n"); // Convert the array element into JSON echo json_encode(new vector($arr), JSON_PRETTY_PRINT); ?> |
Output:
JSON elements:
[
1,
2,
3,
4,
5
]
Program 2:
<?php class vector implements JsonSerializable { public function __construct(array $arr) { $this->array = $arr; } public function jsonSerialize() { return $this->array; } } // Declare an array $arr = [ "x" => "neveropen", "y" => "for", "z" => "neveropen"]; echo("Convert the array element into JSON:\n"); // Convert the array element into JSON echo json_encode(new vector($arr), JSON_PRETTY_PRINT); ?> |
Output:
Convert the array element into JSON:
{
"x": "neveropen",
"y": "for",
"z": "neveropen"
}
Reference: https://www.php.net/manual/en/jsonserializable.jsonserialize.php
